Dennis harrigan



ndert @tat DENNIS HARRIGAN, OF SOMERVILLE, ASSIGNOR TO HIMSELF AND JOHNH. WIGGINS, or BOSTON, MASSACHUSETTS.

)3mm Patent Np. 86,540, ma Febmwy V2, 1869.

mnovmmm IN cru-CUPS or coNNEcTmnoDs on MovABLE BEARINGS or MAGHINERY. Y

The Schedule referred to in the Letters Patent and making-part o f thelame.

To all persons to whom these presents ma/y come Be it known that l',DENNIS HARRIGAN, of Sonnerville, in the county of Middlesex, and -Stateof Mas-y sachusetts, have made a new and useful invention, havingreference to Oil-Cups of Connecting-Rods or Movable Bearings ofMachinery;` and do herebydeclare the s ame to be fully described in thefollowing specification, and represented in the accompanying drawings,in which Figure l is au elevation, and' I Figure 2, a vertical sectionof one of my said oil'- cups.

The cup is intended to be used without a wick to raise the oil into thedischarging-conduit.

It is well known that with those cups which depend on a wick to raisethe oil from the reservoir to and discharge it into the reduction-pipe,there is much waste of .oil while the cup or device, towhich it may beattached, may be at rest, for, during such period, the' owage of the oilcontinues, through the capillary action ofthe Wick, as it does when thecup may be in motion. When the cup may be at rest, there is no necessityfor such lowage, as the bearing to which the cup may be applied, thenrequires no lubrication.

My cup, when at rest, discharges no oil, and'it is :only when it is inArevolution that oil will ilow out of it, the ilowage of it resultingfrom the action of centrifugal force, generated in the oil by theorbital rotaryv motion of the cup.

The body or oil-reservoir A of the cup is furnished with a tube, B, toextend from its bottom, and from the discharge-conduit a, leading downfrom such bottom.

The cover C, ofthe said reservoir, I make conical or convex on its lowersurface, or that surface which is next to the mouth or top of the tubeB, the same being so that, when oil is dashed from the reservoir`against lsuch surface, such oil, by owage ldown the surface, and by theforces of cohesion and gravity, may be directed by vit into the mouth ofthe tube B.

Within the cover C, and over the oillreservcir, I form a chamber, D,having a concave bottom and a conduit, b, leading therefrom to ordirectly over the mouth of the pipe B.

I make one or moreholes, c, through the said bottom, and near thecircumference thereof.

Such chamber may be provided with a cap, E,fitted to it by means ofscrews, or other suitable devices, which will admit of removal of thecap. When provided with the removable cap, the chambermay be cleansed ofany sediment, or foreign matter, which, a-t any time, may have collectedtherein'.

If we suppose the oil-cup, so made, to be screwed upon a connection-rodof a steam-engine, and there used for the purpose of lubricating thecrank-pin laid hold of by such rod, ive shall see that, while the crankpin may be revolvedin an orbit, or circular path, the cup will becarried through a similar orbit, or path, and in consequence thereof,oil, when within the reservoir, willbe thrown up against the convexsurface ofthe cover O.

Much of this oil will find its way through the opening c, and intov thechamber D, from whence it will flow through the duct b into the tube B,and, by the duct a, will be discharged upon the crank-pin. But while thecrank-pin may be at rest, no oil will be discharged upon it.

The cup may be made with the convex or tapering surface or bot-tom ofthe cover, and without tbechamber l). In some cases, it will work wellwhen so made, but I prefer the addition cf the chamber, with the ducts`leading into and out of it, and arranged, with respect to the tube B,in manner substantially as represented,

as it will readilybe seen that, with tbe said additions,

lthe operation of the cup will be greatly improved.

The convexity of the siuface orbottom of the cover should have a form,which, through the action of the forces of cohesion and gravity, whenthe cup may vstand in an upright position, shall direct oil, afterhaving 'been splashed on such convex surface, towards and cause it todrop into the mouth of the tube B.

Another mode in which I have contemplated the application of myinventiouis to have a simple tunnel,

hollow conic frustum, or concave dish, arranged within the cup, and overthe tube B, and' supported withinthe cup by arms, or any suitable means,the whole being so that oil, when thrown up toward the cover of the cup,may pass up about the circumference of the tunnel, frustum, or dish, andthence into the'tun- Y.

nel, frustum, or dish, and thence out of a duct, leading out of it toand overvthe mouth of the tube B. This would save the necessity of morethan one cover to Vthe cup,

I therefore claim as my inventionrlhe combination and arrangement of theconvexity, or convex surface or bottom of the cover C. with the cup and`its internal tube B.

Also, the combination and arrangement of the -cup A, the tube B, thecover E, and the chambered cover G, provided with the ducts c b,arranged with the tube B, substantially as specified.

DENNIS HARRIGAN.

Witnesses:

R. H. EDDY, SAMUEL N. PIPER.

